<div class="chunk-title">Sec. 20-109. - Standards for areas of shallow flooding (zone AO).</div>
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               Located within the special flood hazard areas established in article III,<a href="" data-chunk-id="PTIICOOR_CH20FLDAPR_ARTIIIGEPR_S20-42BAESSPFLHAAR" class="section-link" data-product-id="14661"> section 20-42</a>, are areas designated as shallow flooding areas. These areas have special flood hazards
               associated with base flood depths of one to three feet where a clearly defined channel
               does not exist and where the path of flooding is unpredictable and indeterminate.
               In addition to article V, sections<a href="" data-chunk-id="PTIICOOR_CH20FLDAPR_ARTVPRFLHARE_S20-101GEST" class="section-link" data-product-id="14661"> 20-101</a> and<a href="" data-chunk-id="PTIICOOR_CH20FLDAPR_ARTVPRFLHARE_S20-102SPST" class="section-link" data-product-id="14661"> 20-102</a>, all new construction and substantial improvements shall meet the following requirements:
               
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                  (1)
                  
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                  The reference level shall be elevated at least as high as the depth number specified
                  on the flood insurance rate map (FIRM), in feet, plus a freeboard of three feet, above
                  the highest adjacent grade; or at least 7.5 feet NAVD 1988 whichever is greater above
                  the highest adjacent grade if no depth number is specified.
                  
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                  (2)
                  
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                  Non-residential structures may, in lieu of elevation, be floodproofed to the same
                  level as required in article V,<a href="" data-chunk-id="PTIICOOR_CH20FLDAPR_ARTVPRFLHARE_S20-109STARSHFLZOAO" class="section-link" data-product-id="14661"> section 20-109</a>(1) so that the structure, together with attendant utility and sanitary facilities,
                  below that level shall be watertight with walls substantially impermeable to the passage
                  of water and with structural components having the capability of resisting hydrostatic
                  and hydrodynamic loads and effects of buoyancy. Certification is required in accordance
                  with article IV,<a href="" data-chunk-id="PTIICOOR_CH20FLDAPR_ARTIVAD_S20-76FLDEAPPECERE" class="section-link" data-product-id="14661"> section 20-76</a>(c) and article V,<a href="" data-chunk-id="PTIICOOR_CH20FLDAPR_ARTVPRFLHARE_S20-102SPST" class="section-link" data-product-id="14661"> section 20-102</a>(2).
                  
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                  (3)
                  
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                  Adequate drainage paths shall be provided around structures on slopes, to guide floodwaters
                  around and away from proposed structures.
                  
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               (Ord. of
               <a class="ordinance-link" href="" data-product-id="14661" data-ordinance-id="1056458">
                  6-1-2020(5)
                  </a>
               , art. 5, Â§ I)
               
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